Hans bittixger



(No Model.)

H. BITTINGER.

SHARING BOLT.

No. 398,692. `Patented Feb. 26, 1889.

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Kalong and over the sieve.

"llamen STATES arent OFFICE.

HANS lll'lTlNGER, OF l'lltlfNSlVlCK, GERMANY, ASlGNOR T() (l. LUTHER, OF SAME PLACE.

SHAKlNG-BOLT.

SPECEFICATION forming part of Letters Patent No. 398,692, dated February 26, 1889.

Application filed May 17, 1888. Serial No. 274,174. (No model.)

To @Iii wlw/1t z'z'f 71mg/ concern:

lie it known that l, HANS BITTINGER, a subject ot the liingoil Bavaria, residingat Brunswick, in the Duchy ot' Brunswick, German Empire, have invened new and uiet'ul linproven'ients in Shaking-Bolts, of which the following is a speeilieation.

This invention relates to improvements in shaking-bolts; and it consists in the construction, combination, and relative arrangement ol parts `ii'or causing air-currents to flow along parallel with and immediately above the sieves, as hereinafter more fully set forth.

ln the annexed d rawingr', illust rating the invention, liignre l is a partial sectional elevation of my improved shaking-bolt and its aceornpaniineuts t'or [nodueing an air-current Fig. 2 is a similar view el a machine provided with two sieves. lfig. il is a similar view showing a modification in the construction and location of the bellows.

The letter A designates the separatingsieves, and li a stationary ceiling located above and parallel with the upper sieve, to cause an air-current to pass along and over said sieve.

(l in Figs. l and 2 is a 'forcing-bellows, and in. Fig. 3 an exhaust or sucking bellows. ln Fig. l the pliable leathering ot' the bellows C connects the back wall ol a single sieve, A, to a onary portion ot' the sieve-casing. 1f shaking motion of the sieve d by means ol' the connecting-rod l) air is sucked up through the valve E and forcedout through the valve F along the surtace of the sieve. The material to be treated isallorded an entrance through the hopper G, and is exposed to the air-current, so that the light particles ot' the material are transported gradually toward the eduction-port lil atthe farther end of the sieve. The stationary ceiling ll prevents the air from escaping upward,

and forces it to tlow along and over the sieve. In Fig. 2 the saine principle is applied to two sieves arranged one above the other. The air introduced by the bellows C enters lirst the space between the two s'eves, then passes from below through the upper sieve, and then flows in the saine manner in Fig. 1 along and beneath the ceiling B in a direction parallel to the upper sieve. In the construction shown in Fig. 3 the bellows C is arranged at the eduction-l'iort. lhe upright bellows-casing .l is secured to the eduction end of the sieve, and the rod K' and plate l. are fastened t l the casing oli' the apparatus. Owing to the shaking motion ot the sieve the air is sucked up through the valve O and escapes with the light particles of material through the valve N, the operation being otherwise the saine as already described.

l. The combina-tion, with a horizontallyshaking sieve and its casin g, oi' a bellows located at one end ot' said sieve and having its llexible leathering connected with the sieve and its casing, wherebyv the shaking of the sieve will actuate the bellows, substantial ly as described.

2. The combination, with a shaking sieve and its casing7 of a bellows located at one end ot saidv sieve and having its flexible leathering connected with the sieve and its casing, and a ceiling located close aboveand parallel to the sieve, whereby the shaking of the sieve will actuat-e the bellows and cause a current of: nair to flow along and between the sieve and ceiling, substantially as described.

In testimony whereof l have signed my naine to this specification in the presence of two subscribing witnesses.

HANS BITTINGER. Witnesses:

A. HRMANN, OT'ro KAI-1mi. 

